May be this tests can help you, my friends:

7
4 4 4 5 6 7 5
Answer: 3 5

5
4 4 4 5 5
Answer: 3 5

10
2 3 4 1 1 2 3 4 7 9
Answer: 4 7

Good luck!

Edited by author 11.04.2015 21:18